Here is my list.
1) The traffic in Manila is the worst in the world.
2) Mosquitos. My feet once poked out from under the net and I got 11 swollen bites.
3) Pollution. Its such a shame that all of the rivers double as sewers. The water in manila bay is completely unsafe but I see people fishing and children swimming in it.
4) Waiting in line. People are far to patient when waiting in line at the bank.
5) Tabos. I think I almost drowned myself the first time I used one.